连续分箱模型在湖泊水环境容量计算中的应用

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摘要 Based on the continuous-binning uniform mixed water quality model, an approach for computing water environmental capacity for different functional regions of shallow lakes was established. The certainty and uncertainty of results were analyzed by statistical methods. Meteorological and hydrological data over multiple years was used to calculate water environmental capacity for each region of Lake Chaohu, and compatibility correction was made to the result of each area. More accurate results under different hydrological conditions and water quality targets of Lake Chaohu were obtained by calculating the value range and average value of water environmental capacity series, and analyzing the consistency among water environmental capacity, pollutant flux into the lake, the water quality target and water quality. The results suggest that the annual degradation coefficients of total nitrogen, total phosphorus, ammonia nitrogen and permanganate index of Chaohu Lake were 2.99, 1.94, 10.86, 0.36a^-1, respectively. The water environmental capacity of the lake varies significantly under different hydrological conditions and water quality targets. The water environmental capacity exhibits decreasing trend with the decrease of water storage and stricter water quality targets. The approach proposed in this study shows high efficiency in calculating annual water environmental capacity under different hydrological conditions and water quality targets for shallow lakes, and can be used for providing guidelines for pollutants control in lakes.

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	罗婧
	胡维平
	彭兆亮
	刘刚
	李茂兵
	郭西亚
	王艳平

关键词 ：水环境容量, 连续分箱模型, 协调性分析, 巢湖

Abstract：Based on the continuous-binning uniform mixed water quality model, an approach for computing water environmental capacity for different functional regions of shallow lakes was established. The certainty and uncertainty of results were analyzed by statistical methods. Meteorological and hydrological data over multiple years was used to calculate water environmental capacity for each region of Lake Chaohu, and compatibility correction was made to the result of each area. More accurate results under different hydrological conditions and water quality targets of Lake Chaohu were obtained by calculating the value range and average value of water environmental capacity series, and analyzing the consistency among water environmental capacity, pollutant flux into the lake, the water quality target and water quality. The results suggest that the annual degradation coefficients of total nitrogen, total phosphorus, ammonia nitrogen and permanganate index of Chaohu Lake were 2.99, 1.94, 10.86, 0.36a^-1, respectively. The water environmental capacity of the lake varies significantly under different hydrological conditions and water quality targets. The water environmental capacity exhibits decreasing trend with the decrease of water storage and stricter water quality targets. The approach proposed in this study shows high efficiency in calculating annual water environmental capacity under different hydrological conditions and water quality targets for shallow lakes, and can be used for providing guidelines for pollutants control in lakes.

Key words： water environmental capacity continuous binning model consistency analysis Lake Chaohu

收稿日期: 2024-04-18

PACS:

X524

基金资助:国家自然科学基金资助项目(41907158,42077426,42377451,42307074);长江生态环境保护修复联合研究(2022-LHYJ-02-0401)

通讯作者: 罗婧,助理研究员,jluo@niglas.ac.cn E-mail: jluo@niglas.ac.cn

作者简介: 罗婧(1990-),女,湖北监利人,助理研究员,博士,主要从事浅水湖泊环境水力学研究.发表论文8篇.jluo@niglas.ac.cn.

引用本文:

罗婧, 胡维平, 彭兆亮, 刘刚, 李茂兵, 郭西亚, 王艳平. 连续分箱模型在湖泊水环境容量计算中的应用[J]. 中国环境科学, 2024, 44(11): 6373-6386. LUO Jing, HU Wei-ping, PENG Zhao-liang, LIU Gang, LI Mao-bing, GUO Xi-ya, WANG Yan-ping. Application of continuous binning model in the calculation of water environmental capacity for lakes. CHINA ENVIRONMENTAL SCIENCECE, 2024, 44(11): 6373-6386.

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http://www.zghjkx.com.cn/CN/ 或 http://www.zghjkx.com.cn/CN/Y2024/V44/I11/6373

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